The Stoics believed that entertainment, sex, food, and even alcohol have their place in life—they’re neither good nor bad in themselves. However, when pursued excessively, they can become unhealthy. So the wise man sets reasonable limits on his desires, and he exercises the virtue of moderation: “Nothing in excess.” When doing what feels pleasurable becomes more important than doing what’s actually good for us or our loved ones, though, that’s a recipe for disaster.